Cyrus also discussed the controversial lyrics from her new song 'We Can't Stop'.

One lyric appears to refer to "dancing with Molly" - a slang term for ecstasy - although the star's producer has said the lyric is "dancing with Miley".

Cyrus explained: "It depends who's doing what. If you're aged 10 it's 'Miley'; if you know what I'm talking about then you know. I just wanted it to be played on the radio and they've already had to edit it so much."